Bit or reamer truck.



No. 650,98l. Patented June 5, looi n. F. MILFORD.

BIT 0R REAIVIER TRUCK.

lApplica-tion filed Nov. 2, 1899 (No Model.)

avweuboz 2202s; raw 0762.

UNITED STATES ATENT Fries.

ROBERT F. MILFORD, OF LOST CABIN, \VYOMING.

BIT OR REAMER TRUCK.

SPECIFICATION forming part of Letters Patent No. 650,981, dated June 5,1900.

Application filed November 2, 1899. Serial No. 735,627. (No model.)

To all whom it may concern.-

Be it known that 1, ROBERT F. MILFORD, a citizen of the United States,residing at Lost Cabin, in the county of Fremont and State of Wyoming,have invented a certain new and useful Bit or Reamer Truck, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

This invention relates to improvements in trucks, and has moreparticular relation to trucks for moving heavy machinery, and especiallydrilling-bits and angers for wells.

The invention consists of the combination, with a suitable wheeledframe, of a swivelhead mounted on one end of the same.

The invention also consists of certain other novel constructions, whichwill be hereinafter more particularly set forth and claimed.

In the accompanying drawings, forming part of this specification, Figure1 represents a perspective view of a truck embodying my invention withthe bit in the position it occupies when being secured into its shaft.Fig. 2 represents an enlarged detail central transverse section throughthe swivel-head. Fig. 3 is a top plan with the bit in position on thetruck for moving.

1 1 in the drawings represent the truckwheels; 2, the frame connectingthe same; 3, the truck-frame proper; 4, the swivel-head, and 5 thesliding clamp. Said frame 2 is formed upon its upper surface with acentrally-arranged groove 6 and at the sides thereof smaller grooves 77, the latter being for the reception of the rods 8, which form theframe 3, the forward portion of said rods being connected by a pendentl0op'9, adapted to form a rest for the truck when not in use. The saidrods 8 8 extend parallel to each other, so as to form guides for thesliding clamp 5. This latter comprises a suitable casting, provided ateach end with an eye 10, adapted to slide upon its respective rod 8, andat its middle With two vertical spring clamping-arms 11 11, betweenwhich the bit or reamer is adapted to be clamped. When so applied inposition, said bit or reamer rests within the groove 6, and is thusprevented from moving laterally. The rear ends of the rods 8 8 are bent,respectively, to

form eyes 12 12, which receive suitable trunnions 13, formed upondiametrically-opposite sides of the head 4, whereby the latter may havea pivotal movement in relation to the said rods. This head 4 is furtherprovided with a swivel-clamp 14, which comprises a vertical shaft 15,journaled in said head, two spring clamping-arms 16 16, arranged uponthe upper end of said shaft, and a head or nut 17, formed upon the lowerend of said shaft for securing the same upon the head 4. WVheu the bitis applied in position, as above described, its lower end is secured inthe spring clamping-arms 16. When the bit is to be applied in positionupon its shaft, the truck is first rolled directly under said shaft andthe front ends of the rods 8 8 raised to lower the head 4, so that thehit may be passed under its shaft. The said forward end of the frame 3is then lowered to force the head 4 upward and cause the upperscrew-threaded end of the bit which has previously been disengaged fromthe clamp 5 and grooves 6 and raised to a vertical position, to engagethe screw-threads of the shaft. Said bit may then be rotated to secureit firmly in position upon its shaft, because of the swivel-mounting ofthe clamp 14, upon which it is resting. By this means angers or bits ofgreat weight may be conveniently handled and moved from place to placeas the drilling proceeds and applied or detached from their respectiveshafts at will. It will further be.observed that by the peculiartrunnion connection between the head 4 and the truck-frame I am enabledto tip the truck to any inclination without affecting the position ofthe article resting upon said head. The sliding clampframe 5 may bereadily adjusted along the rods3 to receive the ends of any-sized drillsor reamers. I also contemplate raising the bit into operative positionby attaching a suitable tackle to the frame of the truck, so as to raiseit into a vertical position, with the head resting upon the ground, sothat the swivel-clamp may be rotated to screw the bit into position. Bythis mode of operation the bit is not removed from the sliding clamp 5and the groove 6, but the whole truck-frame is tipped to bring the frameinto the proper vertical position.

I do not care to limit my invention to drilling bits or reamers, as thesame may be aptly employed for the transportation and application of anyform of machinery.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is 4 l. The combination with a wheeled frame,a spring-clamp mounted on one end of the same, and a swivel-clampmounted upon the opposite end, substantially as described.

2. The combination with a wheeled frame, of a head pivotally mountedupon one end, a spring-clamp having swivel connection with said head,and a spring-clamp adjustably mounted upon the opposite end of saidframe, substantially as described.

ROBERT F. MILFORD.

Witnesses:

O. W. BARR, IRA E. JoNEs.

